package com.baima;

/**
 * @author ck
 * @date 2021/9/8 19:13
 */

import com.baima.pojo.User;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import java.io.IOException;
import java.io.InputStream;
import java.util.List;

/**
 * Mybatis  快速入门代码
 */
public class MyBatisDemo1 {

    public static void main(String[] args) throws IOException {
        //1、加载mybatis核心配置文件、获取SqlSessionFactory
        String resource = "mybatis-config.xml";
        InputStream inputStream = Resources.getResourceAsStream(resource);
        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);


        //2、获取SqlSession对象，用它来执行sql
        SqlSession sqlSession = sqlSessionFactory.openSession();

        //3、执行sql语句
        List<User> users = sqlSession.selectList("test.selectAll");

        //4、打印
        System.out.println(users);

        //5、释放资源
        sqlSession.close();
    }
}
